[ELF][MIPS] Fix predicate used for sorting MIPS dynamic symbol tables

Now it conforms requirement for std::stable_sort predicates. That
resolves build-bot failures on Windows hosts.

llvm-svn: 273151
diff --git a/lld/ELF/OutputSections.cpp b/lld/ELF/OutputSections.cpp
index 040657a6..4b71874 100644
--- a/lld/ELF/OutputSections.cpp
+++ b/lld/ELF/OutputSections.cpp
@@ -1277,8 +1277,10 @@
                             const std::pair<SymbolBody *, unsigned> &R) {
   // Sort entries related to non-local preemptible symbols by GOT indexes.
   // All other entries go to the first part of GOT in arbitrary order.
-  if (!L.first->IsInGlobalMipsGot || !R.first->IsInGlobalMipsGot)
-    return !L.first->IsInGlobalMipsGot;
+  bool LIsInLocalGot = !L.first->IsInGlobalMipsGot;
+  bool RIsInLocalGot = !R.first->IsInGlobalMipsGot;
+  if (LIsInLocalGot || RIsInLocalGot)
+    return !RIsInLocalGot;
   return L.first->GotIndex < R.first->GotIndex;
 }